CodeMirror Editon6 chinese character ";" Bug

For example, enter the following text

;;; In; Creation;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; During the process of construction and destruction,
;;;           ;;    ;;;  ;;  ;
;;;   ```ctrl

Typing the Chinese character “;” after the semicolon will cause confusion when selecting

What browser? What platform? Where precisely are you typing? Does the problem occur on typing or on selecting text?